/* ─────────────────────────────────────────────────────────────────────────────
   Syntax Asia Salary System — main.css
   Design: clean, professional, minimal. No gradients. No shadows.
   Palette: Navy (#1a3a5c) primary, warm white (#fafafa) bg.
   ───────────────────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --c-primary:    #1a3a5c;
  --c-primary-dk: #0f2540;
  --c-accent:     #2e75b6;
  --c-danger:     #c62828;
  --c-warning:    #e65100;
  --c-success:    #2e7d32;
  --c-warn-bg:    #fff8e1;
  --c-info-bg:    #e3f2fd;
  --c-ok-bg:      #e8f5e9;
  --c-err-bg:     #fce4e4;

  --text-primary:   #1a1a1a;
  --text-secondary: #555;
  --text-muted:     #888;

  --border:         #e0e0e0;
  --border-focus:   #2e75b6;
  --bg:             #fafafa;
  --bg-card:        #ffffff;
  --bg-input:       #ffffff;

  --radius:    6px;
  --radius-lg: 12px;
  --font:      -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --transition: 150ms ease;
}

body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg);
  min-height: 100vh;
}

/* ── Messages ─────────────────────────────────────────────────────────────── */

.messages {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  width: min(480px, calc(100vw - 2rem));
}

.message {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-size: 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
}
.message--success { background: var(--c-ok-bg);  border-color: #a5d6a7; color: var(--c-success); }
.message--error   { background: var(--c-err-bg); border-color: #ef9a9a; color: var(--c-danger);  }
.message--warning { background: var(--c-warn-bg);border-color: #ffcc80; color: var(--c-warning); }
.message--info    { background: var(--c-info-bg); border-color: #90caf9; color: var(--c-accent);  }

.message__close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  color: inherit;
  opacity: .6;
  flex-shrink: 0;
  padding: 0 2px;
}
.message__close:hover { opacity: 1; }

/* ── Auth layout ──────────────────────────────────────────────────────────── */

.auth-page { background: #f0f4f8; }

.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 420px;
}
.auth-card--wide { max-width: 520px; }

.auth-card__header { text-align: center; margin-bottom: 2rem; }

.auth-card__logo-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}
.auth-card__logo-icon { width: 48px; height: 48px; }

.auth-card__title {
  font-size: 22px;
  font-weight: 600;
  color: var(--c-primary);
  margin-bottom: .25rem;
}
.auth-card__subtitle { font-size: 14px; color: var(--text-muted); }

.auth-card__privacy {
  margin-top: 1.5rem;
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

/* ── Forms ────────────────────────────────────────────────────────────────── */

.auth-form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-group { display: flex; flex-direction: column; gap: .375rem; }
.form-group--inline { flex-direction: row; align-items: center; }

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: .01em;
}

.form-label-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.form-label-link {
  font-size: 13px;
  color: var(--c-accent);
  text-decoration: none;
}
.form-label-link:hover { text-decoration: underline; }

.form-input {
  width: 100%;
  height: 42px;
  padding: 0 .875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-input);
  font-size: 15px;
  color: var(--text-primary);
  font-family: var(--font);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(46,117,182,.15);
}
.form-input--error { border-color: var(--c-danger); }
.form-input--error:focus { box-shadow: 0 0 0 3px rgba(198,40,40,.15); }
.form-hint { font-size: 12px; color: var(--text-muted); }
.form-hint--error { color: var(--c-danger); }

.form-error-banner {
  padding: .75rem 1rem;
  background: var(--c-err-bg);
  border: 1px solid #ef9a9a;
  border-radius: var(--radius);
  color: var(--c-danger);
  font-size: 14px;
}

/* Password input with show/hide button */
.input-with-action {
  position: relative;
  display: flex;
  align-items: center;
}
.input-with-action .form-input { padding-right: 3rem; }
.input-action-btn {
  position: absolute;
  right: .75rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  padding: 4px;
  border-radius: 4px;
  transition: color var(--transition);
}
.input-action-btn:hover { color: var(--text-primary); }
.input-action-btn svg { width: 18px; height: 18px; }

/* Checkbox */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: .5rem;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-secondary);
  user-select: none;
}
.checkbox-input {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--c-primary);
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  padding: 0 1.5rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), opacity var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn:active { transform: scale(.98); }

.btn--primary {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}
.btn--primary:hover { background: var(--c-primary-dk); border-color: var(--c-primary-dk); }

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn--ghost:hover { background: #f5f5f5; }

.btn--full { width: 100%; }

/* ── Alerts ───────────────────────────────────────────────────────────────── */

.alert {
  padding: .875rem 1rem;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.5;
}
.alert--warning { background: var(--c-warn-bg); border: 1px solid #ffcc80; color: #7c4d00; }
.alert--success { background: var(--c-ok-bg);   border: 1px solid #a5d6a7; color: var(--c-success); }
.alert--error   { background: var(--c-err-bg);  border: 1px solid #ef9a9a; color: var(--c-danger); }

/* ── Password rules ───────────────────────────────────────────────────────── */

.password-rules {
  background: #f8f9fa;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .875rem 1rem;
  font-size: 13px;
  color: var(--text-secondary);
}
.password-rules__title { font-weight: 600; margin-bottom: .375rem; }
.password-rules ul { padding-left: 1.25rem; }
.password-rules li { margin-bottom: .25rem; }